<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style type="text/css">
        table {
            width: 100%;
        }
        
        table td {
            text-align: center;
        }
        
        table tr.rowborder td {
            background-color: #b2d1ff;
            border-right: 2px solid #fff;
            height: 3px;
        }
    </style>
</head>

<body>


    <table>
        <tr>
            <td>商品</td>
            <td>数量</td>
            <td>价格</td>
            <td>小记</td>
        </tr>
        <tr class="rowborder">
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>
    </table>

</body>

</html>